fix: Linux 系统安装时游戏目录默认回退到用户主目录

从 deb 等系统包安装时，启动器可执行文件位于 /usr/bin，此前一键安装
StarLight 实例的"选择游戏目录"弹窗会默认到这个系统目录，普通用户既
无写权限，也不适合存放游戏数据。

将默认目录计算移入 theseus::default_game_dir_root()：Linux 下若可执行
文件位于 /usr、/opt、/snap 等系统路径，回退到用户主目录；便携版与其
他平台仍使用可执行文件所在目录。

apps/app/src/main.rs

@@ -324,12 +324,9 @@ async fn initialize_state(app: tauri::AppHandle) -> api::Result<()> {
 /// external game-directory root for the one-click StarLight install flow.
 #[tauri::command]
 fn get_launcher_root_dir() -> api::Result<String> {
-    let exe = std::env::current_exe().map_err(|error| {
+    let dir = theseus::default_game_dir_root().ok_or_else(|| {
-        theseus::Error::from(theseus::ErrorKind::FSError(error.to_string()))
-    })?;
-    let dir = exe.parent().ok_or_else(|| {
         theseus::Error::from(theseus::ErrorKind::FSError(
-            "Launcher executable has no parent directory".to_string(),
+            "Could not determine a default game directory root".to_string(),
         ))
     })?;
     Ok(dir.to_string_lossy().into_owned())

packages/app-lib/src/api/logs/crash_analysis.rs

@@ -109,7 +109,6 @@ pub struct CrashAnalysisMod {
 struct SourceCandidate {
     path: PathBuf,
     filename: String,
-    upload_name: String,
     source_type: &'static str,
     modified: SystemTime,
 }
@@ -117,25 +116,10 @@ struct SourceCandidate {
 #[derive(Debug)]
 struct SourceText {
     filename: String,
-    upload_name: String,
     source_type: &'static str,
     modified: SystemTime,
     content: String,
 }
-pub(super) struct CollectedCrashLog {
-    pub name: String,
-    pub content: CensoredString,
-}
-
-pub(super) struct CollectedCrashLogs {
-    pub combined_log: CensoredString,
-    pub sources: Vec<CollectedCrashLog>,
-}
-
-struct CrashContext {
-    sources: Vec<SourceText>,
-    credentials: Vec<Credentials>,
-}
 
 struct Rule {
     id: &'static str,
@@ -1201,25 +1185,20 @@ async fn collect_candidates(
 ) -> crate::Result<Vec<SourceCandidate>> {
     let mut candidates = Vec::new();
     let mut locations = vec![
-        (
+        (directories.game_logs_dir(instance_root), "minecraft_log"),
-            directories.game_logs_dir(instance_root),
-            "minecraft_log",
-            None,
-        ),
         (
             directories.game_crash_reports_dir(instance_root),
             "crash_report",
-            Some("crash-reports"),
         ),
-        (instance_root.to_path_buf(), "instance_log", None),
+        (instance_root.to_path_buf(), "instance_log"),
     ];
     if let Some(dot_minecraft) = isolated_minecraft_root(instance_root) {
         // PCL-CE also searches the shared `.minecraft` root for JVM crash
         // logs when a version-isolated instance is active.
-        locations.push((dot_minecraft, "minecraft_root_log", None));
+        locations.push((dot_minecraft, "minecraft_root_log"));
     }
 
-    for (directory, default_type, upload_prefix) in locations {
+    for (directory, default_type) in locations {
         if !tokio::fs::try_exists(&directory).await? {
             continue;
         }
@@ -1269,9 +1248,6 @@ async fn collect_candidates(
             };
             candidates.push(SourceCandidate {
                 path: entry.path(),
-                upload_name: upload_prefix
-                    .map(|prefix| format!("{prefix}/{filename}"))
-                    .unwrap_or_else(|| filename.clone()),
                 filename,
                 source_type,
                 modified: metadata.modified().unwrap_or(SystemTime::UNIX_EPOCH),
@@ -1281,53 +1257,6 @@ async fn collect_candidates(
     Ok(candidates)
 }
 
-async fn collect_crash_context(
-    instance_id: &str,
-) -> crate::Result<CrashContext> {
-    let state = State::get().await?;
-    let (instance_path, game_dir_override) =
-        resolve_instance_path(instance_id, &state).await?;
-    let instance_root = state
-        .directories
-        .resolve_game_dir(&instance_path, game_dir_override.as_deref());
-    let candidates =
-        collect_candidates(&instance_root, &state.directories).await?;
-    let selected = select_run_candidates(candidates);
-    let sources = read_sources(selected).await;
-    let credentials = Credentials::get_all(&state.pool)
-        .await?
-        .into_iter()
-        .map(|credential| credential.1)
-        .collect::<Vec<_>>();
-    Ok(CrashContext {
-        sources,
-        credentials,
-    })
-}
-
-pub(super) async fn collect_crash_logs(
-    instance_id: &str,
-) -> crate::Result<CollectedCrashLogs> {
-    let CrashContext {
-        sources,
-        credentials,
-        ..
-    } = collect_crash_context(instance_id).await?;
-    let combined_log =
-        CensoredString::censor(build_combined_log(&sources), &credentials);
-    let sources = sources
-        .into_iter()
-        .map(|source| CollectedCrashLog {
-            name: source.upload_name,
-            content: CensoredString::censor(source.content, &credentials),
-        })
-        .collect();
-    Ok(CollectedCrashLogs {
-        combined_log,
-        sources,
-    })
-}
-
 fn isolated_minecraft_root(instance_root: &Path) -> Option<PathBuf> {
     let versions_dir = instance_root.parent()?;
     if versions_dir
@@ -1391,7 +1320,6 @@ async fn read_sources(candidates: Vec<SourceCandidate>) -> Vec<SourceText> {
         };
         sources.push(SourceText {
             filename: candidate.filename,
-            upload_name: candidate.upload_name,
             source_type: candidate.source_type,
             modified: candidate.modified,
             content: String::from_utf8_lossy(bytes).into_owned(),
@@ -1851,7 +1779,6 @@ mod tests {
     fn source(filename: &str, content: &str) -> SourceText {
         SourceText {
             filename: filename.to_string(),
-            upload_name: filename.to_string(),
             source_type: "minecraft_log",
             modified: SystemTime::now(),
             content: content.to_string(),
@@ -1875,7 +1802,6 @@ mod tests {
         let candidates = vec![SourceCandidate {
             path: PathBuf::from("launcher_log.txt"),
             filename: "launcher_log.txt".to_string(),
-            upload_name: "launcher_log.txt".to_string(),
             source_type: "minecraft_log",
             modified: SystemTime::now() - Duration::from_secs(181),
         }];

packages/app-lib/src/api/logs/logshare.rs

@@ -4,7 +4,8 @@ use futures::StreamExt;
 use serde::{Deserialize, Serialize};
 use serde_json::{Value, json};
 
-use super::crash_analysis::collect_crash_logs;
+use super::CensoredString;
+use super::crash_analysis::analyze_crash;
 use crate::State;
 use crate::emit_logshare_ai_event;
 
@@ -199,6 +200,32 @@ fn source_identifier() -> String {
     format!("{LOGSHARE_SOURCE_PREFIX}/{}", env!("CARGO_PKG_VERSION"))
 }
 
+struct CollectedCrashLog {
+    name: String,
+    content: CensoredString,
+}
+
+struct CollectedCrashLogs {
+    combined_log: CensoredString,
+    sources: Vec<CollectedCrashLog>,
+}
+
+async fn collect_crash_logs(
+    instance_id: &str,
+) -> crate::Result<CollectedCrashLogs> {
+    let analysis = analyze_crash(instance_id).await?;
+    Ok(CollectedCrashLogs {
+        combined_log: analysis.combined_log,
+        sources: analysis
+            .sources
+            .into_iter()
+            .map(|source| CollectedCrashLog {
+                name: source.filename,
+                content: source.content,
+            })
+            .collect(),
+    })
+}
 async fn prepare_upload(instance_id: &str) -> crate::Result<UploadBody> {
     let settings = get_log_share_settings().await?;
     let logs = collect_crash_logs(instance_id).await?;

packages/app-lib/src/lib.rs

@@ -39,7 +39,7 @@ pub use state::{DirectoryInfo, State};
 pub use storage::*;
 pub use util::fetch::build_proxied_client;
 pub use util::file_lock::{LockingProcess, get_locking_processes};
-pub use util::platform::is_process_elevated;
+pub use util::platform::{default_game_dir_root, is_process_elevated};
 pub use util::proxy::{ProxyConfig, ProxyMode, ProxyTestResult};
 pub use util::symlink::SymlinkCapability;
 

packages/app-lib/src/util/platform.rs

@@ -1,5 +1,6 @@
 //! Platform-related code
 use daedalus::minecraft::{Os, OsRule};
+use std::path::PathBuf;
 
 /// (e.g. "Run as administrator" on Windows).
 #[cfg(target_os = "windows")]
@@ -143,3 +144,31 @@ pub fn classpath_separator(java_arch: &str) -> &'static str {
         Os::Windows | Os::WindowsArm64 => ";",
     }
 }
+
+/// Root directory used as the default for one-click StarLight instance
+/// installs. Portable builds live next to their executable, which is a fine
+/// place for game data. System installs (e.g. a Linux `.deb` under `/usr/bin`)
+/// do not, so fall back to the user's home directory there.
+pub fn default_game_dir_root() -> Option<PathBuf> {
+    let exe_dir = std::env::current_exe().ok()?.parent()?.to_path_buf();
+    if cfg!(target_os = "linux") && is_system_install_dir(&exe_dir) {
+        return dirs::home_dir();
+    }
+    Some(exe_dir)
+}
+
+#[cfg(target_os = "linux")]
+fn is_system_install_dir(path: &std::path::Path) -> bool {
+    const SYSTEM_PREFIXES: &[&str] = &[
+        "/usr/", "/opt/", "/snap/", "/bin/", "/sbin/", "/lib/", "/lib64/",
+    ];
+    let display = path.to_string_lossy();
+    SYSTEM_PREFIXES
+        .iter()
+        .any(|prefix| display.starts_with(prefix))
+}
+
+#[cfg(not(target_os = "linux"))]
+fn is_system_install_dir(_path: &std::path::Path) -> bool {
+    false
+}